Thermodynamics Calculator — Specific Heat Capacity (Q = mcΔT)Q = mcΔT  ·  Heat Energy · Mass · Specific Heat · Temperature Change · Joules

Use this free Thermodynamics Calculator to instantly solve any unknown variable in the fundamental specific heat capacity equation: Q = m × c × ΔT — where Q is the heat energy transferred in Joules (J) or kJ, m is the mass of the substance in kilograms (kg) or grams (g), c is the specific heat capacity in J/kg·K or J/g·°C, and ΔT is the temperature change in °C or Kelvin (K). Enter any three known values to automatically solve the fourth — computing: heat energy (Q) in Joules or kJ · mass (m) in kg or grams · specific heat capacity (c) in J/kg·K · temperature change (ΔT) in °C or Kelvin — with automatic unit conversion across all standard heat and temperature units.

The Q = mcΔT specific heat formula is one of the most widely applied equations in thermodynamics, physics, and chemical engineering, used extensively across: A-Level, AP Physics, IB Physics, JEE, and NEET thermodynamics problems, calorimetry experiments and heat transfer lab calculations, HVAC and building thermal load analysis, materials science — comparing specific heat capacities of metals, water, air, and polymers, food science and industrial process heating calculations, and climate science — ocean and atmospheric heat capacity modeling. Well-known specific heat capacity values include: water (4,186 J/kg·K) — the highest of common substances, aluminium (897 J/kg·K), copper (385 J/kg·K), iron (449 J/kg·K), and air (1,005 J/kg·K) — making this specific heat calculator an essential reference tool for physics students, engineers, chemists, and materials scientists.

⚠ Physics Disclaimer: This thermodynamics calculator assumes ideal heat transfer conditions with no heat loss to surroundings and a homogeneous material with constant specific heat capacity across the temperature range. It does not account for latent heat during phase changes (melting, boiling, condensation), radiation, convection, or conduction heat losses, temperature-dependent specific heat variation, or non-uniform material composition. For precise industrial heat transfer calculations, calorimetry research, or thermodynamic system design, consult a licensed mechanical or chemical engineer following applicable ASHRAE, ASME, and ISO thermodynamics standards.